Answer:
Step-by-step explanation:
<u>Given</u>
- The mean temperature for the first 4 days = -12°C
- The mean temperature for the first 5 days = -13°C
<u>To find</u>
- The temperature on the 5th day
<u>Solution</u>
- Total of 4 days = 4*(-12) = -48°C
- Total of 5 days = 5*(-13) = -65°C
<u>The difference is the temperature on the 5th day:</u>
So 110% of x is 880 means 1.1x=880
so 1.1x=880
multiply both sides by 10
11x=8800
divide both sides by 11
8800=88 times 100 88=8 times 11
8800/11=800
x=800
Answer:
A solution that results in a false statement when substituted back into the original equation.
Step-by-step explanation:
An extraneous solution is one that arises in a solution of equations, but which on closer inspection is not a solution to the original equation. Therefore, they imply an error in the development of the solution of the equation, so they cannot be taken as a valid solution since, when replacing the result with the missing variable, the equation does not obtain the desired result.
Answer: 12
Step-by-step explanation:
(55-52) + ( 3 +6)
3 + 9
12